I need this ASAP. An auditorium has 300 seats. At the beginning of concert 100. Every ten minutes, 15 people leave and 40 people sit down. If this continues how long will it take for the auditorium to be full

Afarm is to be built in the shape of quadrilateral abcd, as shown below. all four sides are equal. a rhombus abcd is shown with diagonal ac equal to 15.5 feet and diagonal bd equal to 13.2 feet. what is the area of the farm? pleas only pick from the 4 below 62 square feet 52.8 square feet 57.4 square feet 102.3 square feet